There is also matrix and nextcloud has the talk integration (also based on the fediverse Afair)

There is a docker all in one solution that is relatively Easy to set up

https://github.com/nextcloud/all-in-one

I’m reasonably happy with nextcloud and would recommend it.

Another alternative for next time. Scan the whole network with nmap for open port 8006, that should give you the up as well.

Search for bazarr, automatic subtitle search and download.